Attaching means for load binder or boomer



Feb. 25, 1958 J. o. YEAGER ATTACHING MEANS FOR LOAD BINDER 0R BOOMER Filed Dec. 21', 1953 INVENTOR ATTORNEYS United States Patent i ATTACHING MEANS FOR LOAD BINDER OR BOOMER James 0. Yeager, McGregor, Tex. Application December 21, 1953, Serial No. 399,250 1 Claim. (Cl. 254-78) By way of explanation, it might be stated that when a load binder or boomer is attached to a chain around a cargo which is solid, such as pipes, lumber, etc., and the lever is pressed downwardly, the load binder frequently is too tight or too loose. If the chain of the load binder is too loose, the hook on the boomer must be moved back one chain link, with the principal result that the boomer lever cannot be operated or pressed downwardly without undue pressure, such as positioning a long pipe over the boomer lever to increase the lever age, and then pulling the lever downwardly to locking position or past dead center of the boomer mechanism. This method usually directs too much strain on the base of the boomer, resulting in a bent or broken boomer. It is, therefore, the primary object of the present invention to provide a boomer having adjusting means to tighten or loosen the boomer in a few seconds after such major adjustment has been made, to permit the operation of the boomer lever to tighten the load binder on the load.

An important object of the invention is to provide a boomer including a pivoted yoke and an operating lever for moving the yoke in a manner to tighten or loosen the chain of the load binder, and adjustable means forming a part of the yoke for shortening or lengthening the throw of the yoke of the boomer to compensate for such variation in the length of the load binder yoke.

With the foregoing and other objects in view which will appear as the description proceeds, the invention consists of certain novel details of construction and combinations of parts hereinafter more fully described and pointed out in the claim, it being understood that changes may be made in the construction and arrangement of parts without departing from the spirit of the invention as claimed.

Referring to the drawing:

Figure 1 is a plan view of a boomer, constructed in accordance with the invention.

Fig. 2 is a side elevational view thereof.

Fig. 3 is a fragmental longitudinal sectional view through the boomer yoke and adjusting sleeve.

Fig. 4 is a sectional View taken on line 4-4 of Fig. 3.

Referring to the drawing in detail, the boomer comprises a yoke 5, which yoke is formed with the threaded opening through which the adjusting sleeve 6 operates, the adjusting sleeve having a knurled head 7 formed at one end thereof for effecting rotation of said adjusting sleeve to move the adjusting sleeve with respect to the yoke.

Disposed within the adjusting sleeve 6, is a bolt 8 which is swiveled within the sleeve and carries the ring 9 at the outer end thereof, the ring being secured by threading on one end of said bolt 8, and further secured by means of the pin 10 which extends transversely through the ring 9 and bolt 8, as better shown by Fig. 3 of the drawing.

The end of the bolt 8 which extends through sleeve ,6, is provided with a head 11, to secure the bolt 8 2,824,717 Patented Feb. 25, 1958 against movement longitudinally of the sleeve 6 in one direction.

The sleeve 6 is formed with an annular groove 12 disposed adjacent to the end of the sleeve disposed within the confines of the yoke 5, in which groove a split retaining ring 13 is held, the retaining ring 13 preventing the sleeve and bolt 8 swiveling therein from becoming disposed from the yoke 5 under normal conditions. The reference character 14 indicates the operating lever of the boomer and as shown the lever of the boomer is formed with a forked end 15 which is offset with respect to the main or handle portion of the lever 14 so that it may fit into the yoke when it is in active position.

The forked end 15 of the operating lever 14 is pivotally connected with the yoke 5 as better shown by Fig. 1 of the drawing by means of pivot pins 16.

Mounted within the forked end 15 of the operating handle, is a pivot pin 17 to which the bar 18 is pivotally connected at one of its ends, the other end of the bar 18 being formed with a socket in which the shank 19 of the eye member 20 is swiveled. The eye member 20 provides means for connecting a link 21 to the boomer, the link 21 being connected with the book 22 designed to be positioned in a link of the chain of a load binder.

The ring 9 also provides means for connecting the link 23 to the bolt 8 to move therethrough, the link being connected with the hook 24 that in turn connects with a link of the load binder chain 25.

In the use of the device, the chain of the load binder is positioned around the load and the hooks 22 and 24 are positioned in links of the chain of the load binder. If the chain is too short to permit the operation of the operating lever 14, it is only necessary to rotate the adjusting sleeve 6 to lengthen the distance between the ends of the chain, to a position permitting the operating lever 14 to be swung downwardly past dead center of the pivot pins 16, drawing the chain tightly around the load.

It will of course, be understood that if after positioning the hooks 22 and 24 in links of the chain, the chain is too long, the adjusting sleeve may be rotated to shorten the distance between the ends of the chain until the operating lever may be moved downwardly to draw the ends of the chain closely together and in binding relation with the load.

Having thus described the invention, what is claimed is:

In an adjustable load binder having a chain adapted to be positioned around a load, securing means for securing the ends of the chain together around the load, said securing means comprising a U-shaped yoke, said yoke having a threaded opening, a threaded adjustable sleeve operating through the opening, a bolt slidably mounted within the threaded sleeve movable therethrough, means at the ends of said bolt engageable with the ends of the sleeve restricting movement longitudinally of said bolt within the sleeve, a chain hook connected with one end of said bolt adapted to hook into a link of said chain, an operating lever including a forked member, means for pivotally connecting the forked end of said operating lever to said yoke normally lying within the confines of said yoke, a bar having one end thereof pivotally connected with the forked end of the operating lever, a second chain hook, and swivel means for connecting said second hook to said bar, said adjusting sleeve adapted to adjust said chain hooks with respect to each other independently of said operating lever.

References Cited in the file of this patent UNITED STATES PATENTS 947,739 Newland J an. 25, 1910 (Other references on following page) Montgomery Nov. 1, 1932 Williams Aug. 10, 1937 ,Hylgr Mar. 19.4 5 Durbin JunelO, 1947 4 Smith Aug. 21, 1951 LCushman Feb. 17, 1953 Attenhofer Dec. 8, 1953 FOREIGN PATENTS Switzerland Sept. 16, 1927 

